Diamond Valley, Utah Homes for Sale

Diamond Valley sits about 15 miles north of St. George on Highway 18, tucked into a high desert valley at roughly 4,500 feet elevation. It's about 10 degrees cooler than the city below, which matters more than it sounds when July hits. The community is unincorporated Washington County, no HOA on any of the properties here, and most lots run close to an acre. It's the kind of place people who know Southern Utah specifically seek out, and people who find it tend to stay.

You know you're getting close when two large extinct cinder cone volcanoes come into view on either side of the highway. That's the entrance to Diamond Valley, and it sets the tone for what the community is: dramatic, unhurried, and unlike anything else in the St. George area.

What Makes Diamond Valley Different

• No HOA, anywhere: every property in Diamond Valley is HOA-free. Park your trailer, store your RV, keep horses, build a shop. No association telling you otherwise.
• Cooler temperatures: at 4,500 feet elevation, Diamond Valley runs about 10 degrees cooler than St. George year-round. Summer mornings are genuinely comfortable. You can sleep with the windows open in July.
• Dark skies: surrounded by government grazing land with minimal light pollution, Diamond Valley has some of the best stargazing in the St. George area. Clear nights here look different than anywhere in the valley below.
• Acreage as the baseline: most lots are close to an acre. That's not a premium feature here, it's just how the community is built.
• Horse privileges: animal rights and horse privileges come with most properties. Corrals, barns, and equestrian setups are common throughout the neighborhood.
• Snow Canyon two minutes away: the entrance to Snow Canyon State Park is essentially next door. Hiking, cycling, and some of the most scenic red rock terrain in Utah are right there.
• BLM access: the surrounding land is government-owned grazing territory with trails for hiking, biking, and OHV use.

The Volcanoes

The two extinct cinder cone volcanoes at the entrance to Diamond Valley are one of the most distinctive geographic features in Washington County. The larger one has a hiking trail that goes to the peak and down into the crater. It's the kind of thing that's easy to take for granted when it's your daily backdrop but makes an impression on everyone who visits. From the top, you get views across Diamond Valley, toward Pine Valley Mountain, and back toward Snow Canyon.

Diamond Valley at a Glance

• Location: 15 miles north of St. George on Highway 18, ~20 to 25 minutes to downtown
• Elevation: approximately 4,500 feet, about 10 degrees cooler than St. George
• Jurisdiction: unincorporated Washington County
• HOA: none
• Lot sizes: most properties run 0.9 to 1.3+ acres; some larger parcels available
• Utilities: septic tanks standard; water via culinary city/district or Diamond Valley water shares depending on the property
• Schools: Diamond Valley Elementary; Dixie Intermediate; Dixie Middle; Dixie High
• Price range: roughly $580K to $2.2M+ for residential homes currently on market

What Homes Look Like in Diamond Valley

The housing stock is a mix of older established homes from the 1990s and 2000s alongside newer custom builds. Most are single-level or walkout basement floor plans on acreage lots. Shops, barns, detached garages, and casitas are common. ADUs appear regularly, which makes Diamond Valley appealing for multigenerational buyers or those who want rental income alongside the primary residence.

Properties here tend to be well-equipped for the outdoor lifestyle: RV parking, extended garages, corrals, fruit trees, and large yards are standard features rather than premium upgrades. Solar panels are common due to the sun exposure and the desire for low utility costs given the rural setting.

Who Buys in Diamond Valley

• Buyers who want space without restrictions: no HOA is the first thing most Diamond Valley buyers mention. If you need to park a trailer, store an RV, or keep animals, Diamond Valley removes the constraints that most St. George subdivisions impose.
• Horse and animal owners: horse privileges are standard across most properties. Corrals, barns, and established equestrian setups are available at multiple price points.
• Buyers escaping the valley heat: 10 degrees cooler is a real and meaningful difference in July. People who work outdoors, run horses, or simply want comfortable summer evenings specifically seek out this elevation.
• Remote workers: high-speed internet has reached Diamond Valley, making it viable for full-time remote work. The combination of acreage, quiet, and broadband is increasingly rare.
• Multigenerational households: ADUs, casitas, and large floor plans with separate entrances are common throughout the neighborhood, making Diamond Valley well-suited for extended family setups.
• Buyers who know what they want: Diamond Valley has a self-selecting buyer pool. People who find it are usually looking specifically for this combination of features, and they tend to stay.

Buying or Selling in Diamond Valley

Diamond Valley properties require specific due diligence: water rights verification, septic inspection, zoning confirmation for intended animal use, and shop or outbuilding permitting history. These are all standard items I cover on acreage purchases and rural property transactions.

Inventory here is limited by community size and the fact that most people who buy in Diamond Valley don't sell quickly. When a good property comes available, qualified buyers who are already watching the market have a real advantage.

Contact Lance Clifford or call 435-200-5508.

Rural power is a real budget line in Diamond Valley, so run my power cost calculator, which compares Dixie Power against Rocky Mountain Power and every city utility in the county. My property tax calculator pairs with it, showing how unincorporated county tax areas compare with St. George proper.

FAQ: Diamond Valley Homes and Living